A cube of copper was found to have a mass of 0.630kg. What are the dimensions of the cube?(The density of copper is 8.94g/cm3).

Given that:

Mass of cube=0.630kg=630g

Density=8.94g/cm3

Volume =Mass / Density  (Since density=Mass /volume)

=630/8.94=70.5 cubic centimetres

Dimensions of cube are 

,

,

,

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volume=densitymass

so ,8.94gcm^30.63kg/1000g

=14190.47619

=4730

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Mass of cube(M)=0.63 kg

Density of cube(D)=8.94 g/cm3=8940kg/m3

Volume of cube=Mass of cube(M)/Density of cube(D)

=0.63/8940

=7 m3 (approx.)

(side)3 =7

side =3√7 m

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